The Seattle Mariners' 2001 season was the 25th since the franchise's inception. They finished with a 116-46 (.71605) record, tying the major league record for wins in the modern era (since 1901) set by the 1906 Chicago Cubs, and setting the record for wins by an American League team. From a winning percentage record, it would only be surpassed in modern baseball by the 2020 Los Angeles Dodgers, who finished 43-17 (.71667) in a pandemic-shortened season. Of the 116 wins, 59 were by four or more runs, setting a record that was later broken by the 2022 and 2023 Los Angeles Dodgers, each with 60 such wins. They also led the majors in both runs scored and fewest runs allowed. The 2001 Mariners hold the record for the most Wins Above Replacement (WAR) by a team in a season in MLB history, with 50.4. Even the 1927 New York Yankees, often considered the greatest team of all time due to their elite "Murderers’ Row" lineup, fell short of the Mariners; they recorded 48.7 WAR, 1.7 less than the Mariners, the second-highest single-season total in MLB history. The 2001 season was also notable for the Major League debut of star Japanese outfielder Ichiro Suzuki, who led the league in batting average and won both the AL Rookie of the Year and the AL MVP awards. Additionally, the Mariners hosted their second All-Star Game during the season. Winning the American League West, the 2001 season marked the first (and to date, only) time the Mariners reached the postseason in consecutive seasons. The team defeated the Cleveland Indians in the ALDS in five games, but fell to the New York Yankees in five games in the ALCS. They became the first team in MLB history to win 110 or more regular season games and fail to reach the World Series. They would later be joined in this regard by the 2022 Los Angeles Dodgers. Despite the record-setting win total, the Mariners would not reach the postseason again until 2022, which was the longest active drought in the four major North American sports.

Offseason

Regular season

Roster

Season standings

Detailed records

Record vs. opponents

Game log

Bold = Mariners team member

All-Star Game

The Mariners hosted the 2001 Major League Baseball All-Star Game on July 10, 2001 at Safeco Field. It was the second time the Mariners hosted the Midsummer Classic, and the first at Safeco Field. Eight Mariners were in the game, including four in the starting lineup. The game resulted in the American League defeating the National League by the final score of 4–1. This would be the final All-Star Game for Cal Ripken Jr. and Tony Gwynn.

Player stats

Batting

Starters by position

''Note: Pos = Position; G = Games played; AB = At bats; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs batted in; SB = Stolen bases''

Other batters

''Note: G = Games played; AB = At bats; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs batted in; SB = Stolen bases''

Pitching

Starting pitchers

Note: G = Games pitched; GS = Games started; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts

Other pitchers

Note: G = Games pitched; GS = Games started; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts

Relief pitchers

Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; SV = Saves; SVO = Save opportunities; ERA = Earned run average; SO = Strikeouts

Postseason

Game log

Bold = Mariners team member

Postseason rosters

Awards and records

All-Star Game

Farm system

LEAGUE CO-CHAMPIONS: Tacoma

Major League Baseball Draft

The following is a list of 2001 Seattle Mariners draft picks. The Mariners took part in the June regular draft, also known as the Rule 4 draft. The Mariners made 52 selections in the 2001 draft, the first being shortstop Michael Garciaparra in the first round. In all, the Mariners selected 23 pitchers, 13 outfielders, 7 catchers, 5 shortstops, 2 third basemen, 1 first baseman, and 1 second baseman.

Draft

Key

Table